JPS5744707A - Arrangement for damping vibration of rotor in axial-flow rotary machine - Google Patents
Arrangement for damping vibration of rotor in axial-flow rotary machineInfo
- Publication number
- JPS5744707A JPS5744707A JP11978880A JP11978880A JPS5744707A JP S5744707 A JPS5744707 A JP S5744707A JP 11978880 A JP11978880 A JP 11978880A JP 11978880 A JP11978880 A JP 11978880A JP S5744707 A JPS5744707 A JP S5744707A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- seal fins
- axial
- rotary machine
- work fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To prevent abnormal vibration of a rotor in an axial-flow rotary machine, by minimizing the change in the flow of leaked work fluid in a circumferential direction through provision of seal fins which are arranged in the manner such that the gaps between each of the seal fins make changes inversely to the spacing between the seal fins and a cover.
CONSTITUTION: Seal fins 7 are attached to the inner wall surface of a stator outer ring 5 that is fixed to a casing. Further, seal fins 9, 10 are fixed to the side wall surface of the stationary outer ring 5 of the stator, in the manner that they project in the axial direction of a rotor and are located nearer to the center of the rotor than the inner faces 6a, 6b of a cover 6 at the opposite axial ends of the same. Resultantly, spacing between the seal fins 7 and seal fins 9, 10 for preventing leakage of work fluid into the main flow from the outer circumferential portion of a rotor blade 2 is increased at one side but decreased at the other side by minute vibration of the rotor. Therefore, it is enabled to minimize leakage of work fluid in the circumferential direction due to minute vibration of the rotor.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11978880A JPS5744707A (en) | 1980-09-01 | 1980-09-01 | Arrangement for damping vibration of rotor in axial-flow rotary machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11978880A JPS5744707A (en) | 1980-09-01 | 1980-09-01 | Arrangement for damping vibration of rotor in axial-flow rotary machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5744707A true JPS5744707A (en) | 1982-03-13 |
Family
ID=14770230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11978880A Pending JPS5744707A (en) | 1980-09-01 | 1980-09-01 | Arrangement for damping vibration of rotor in axial-flow rotary machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5744707A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59184303U (en) * | 1983-05-27 | 1984-12-07 | 三菱重工業株式会社 | Seal structure of turbine blades |
JPS6166769A (en) * | 1984-09-10 | 1986-04-05 | Sanyo Chem Ind Ltd | Binder for printing ink |
JPS61225211A (en) * | 1985-03-29 | 1986-10-07 | Sanyo Chem Ind Ltd | Production of polyureaurethane |
US4662820A (en) * | 1984-07-10 | 1987-05-05 | Hitachi, Ltd. | Turbine stage structure |
JPS62220568A (en) * | 1986-03-20 | 1987-09-28 | Sanyo Chem Ind Ltd | Binder for printing ink |
JPS62292874A (en) * | 1986-06-12 | 1987-12-19 | Sanyo Chem Ind Ltd | Binder for printing ink |
DE19619725A1 (en) * | 1996-05-15 | 1997-11-20 | Siemens Ag | Turbine blade, in particular for a steam turbine |
JPH11148308A (en) * | 1997-09-19 | 1999-06-02 | Asea Brown Boveri Ag | Shroud band for axial-flow turbine |
US6508624B2 (en) * | 2001-05-02 | 2003-01-21 | Siemens Automotive, Inc. | Turbomachine with double-faced rotor-shroud seal structure |
DE102009011297A1 (en) * | 2009-03-02 | 2010-09-09 | Rolls-Royce Deutschland Ltd & Co Kg | Sealing arrangement for turbine of turbo machine, has groove comprising undercuts provided in axial direction, where platform and/or sealing ring comprise sealing element that engages groove and extends in peripheral direction |
JP2012132441A (en) * | 2010-12-17 | 2012-07-12 | General Electric Co <Ge> | Supersonic compressor and method of assembling the same |
-
1980
- 1980-09-01 JP JP11978880A patent/JPS5744707A/en active Pending
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59184303U (en) * | 1983-05-27 | 1984-12-07 | 三菱重工業株式会社 | Seal structure of turbine blades |
US4662820A (en) * | 1984-07-10 | 1987-05-05 | Hitachi, Ltd. | Turbine stage structure |
JPS6166769A (en) * | 1984-09-10 | 1986-04-05 | Sanyo Chem Ind Ltd | Binder for printing ink |
JPH0543756B2 (en) * | 1984-09-10 | 1993-07-02 | Sanyo Chemical Ind Ltd | |
JPH055242B2 (en) * | 1985-03-29 | 1993-01-21 | Sanyo Chemical Ind Ltd | |
JPS61225211A (en) * | 1985-03-29 | 1986-10-07 | Sanyo Chem Ind Ltd | Production of polyureaurethane |
JPS62220568A (en) * | 1986-03-20 | 1987-09-28 | Sanyo Chem Ind Ltd | Binder for printing ink |
JPH0574623B2 (en) * | 1986-03-20 | 1993-10-18 | Sanyo Chemical Ind Ltd | |
JPS62292874A (en) * | 1986-06-12 | 1987-12-19 | Sanyo Chem Ind Ltd | Binder for printing ink |
JPH0573154B2 (en) * | 1986-06-12 | 1993-10-13 | Sanyo Chemical Ind Ltd | |
DE19619725A1 (en) * | 1996-05-15 | 1997-11-20 | Siemens Ag | Turbine blade, in particular for a steam turbine |
JPH11148308A (en) * | 1997-09-19 | 1999-06-02 | Asea Brown Boveri Ag | Shroud band for axial-flow turbine |
US6508624B2 (en) * | 2001-05-02 | 2003-01-21 | Siemens Automotive, Inc. | Turbomachine with double-faced rotor-shroud seal structure |
DE102009011297A1 (en) * | 2009-03-02 | 2010-09-09 | Rolls-Royce Deutschland Ltd & Co Kg | Sealing arrangement for turbine of turbo machine, has groove comprising undercuts provided in axial direction, where platform and/or sealing ring comprise sealing element that engages groove and extends in peripheral direction |
JP2012132441A (en) * | 2010-12-17 | 2012-07-12 | General Electric Co <Ge> | Supersonic compressor and method of assembling the same |
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